131522753 has 4 divisors (see below), whose sum is σ = 135077460. Its totient is φ = 127968048.

The previous prime is 131522749. The next prime is 131522759. The reversal of 131522753 is 357225131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127057984 + 4464769 = 11272^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 131522753 - 2² = 131522749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131522759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777298 + ... + 1777371.

It is an arithmetic number, because the mean of its divisors is an integer number (33769365).

Almost surely, 2^131522753 is an apocalyptic number.

It is an amenable number.

131522753 is a deficient number, since it is larger than the sum of its proper divisors (3554707).

131522753 is an equidigital number, since it uses as much as digits as its factorization.

131522753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554706.

The product of its digits is 6300, while the sum is 29.

The square root of 131522753 is about 11468.3369762141. The cubic root of 131522753 is about 508.5499667774.

Adding to 131522753 its reverse (357225131), we get a palindrome (488747884).

The spelling of 131522753 in words is "one hundred thirty-one million, five hundred twenty-two thousand, seven hundred fifty-three".